How to choose a projector screen ?

After purchasing the projector, in order to seek the best projection, it is necessary with a suitable projector screen. But on the market, there are different types of projector screen. So that we can not start, and sometimes because we do not understand the projector screen and projection environment and make the wrong choice, resulting in a waste of time and money.

When people choose to projection method to achieve large-screen video display, they put their attention on projector very seriously, while ignored the projector screen. In fact, a good projection has a close relationship with projector screen. Different screen adapt to different environments, location and content, only the right choice, the projector and projector screen can achieve "gold partner", so that the screen is fully unfolded perfectly. So what factors shall we consider in the selection of it in the end ?

Selection of screen material

What we usually see the screen are mainly white and gray two colors, no big difference, in fact, different materials have different characteristics, should be selected according to the actual needs. The more commonly used projector screen material are: matte white, matter gray and glass beaded .

The matte white is made of special fabric with white coating. This screen has a wide viewing angle, image color and soft, it can be repeatedly rolled up and so on. But it is easy to be affected by the ambient light, which led to a black level of the picture is not good, the image is too bright. For the brightness is not high projector, the matte white screen is difficult to show a high level of image, but because of its cheap price, the most widely used.

Glass bead is made of glass fiber with particles glass beads etc.. It has the optical characteristics of road signs. Moderate price, anti environmental light and diffuse reflection ability, can bring more bright, colorful image in the environment of light interference , but the perspective is relatively narrow, can not clean, easy to lose the beads.

Matte grey develops on the basis of matte white , made of grey material, can absorb more ambient light than matte grey , better resistance to environmental light interference, effectively improve the picture contrast, picture more level, image more clear and detailed. The disadvantage is the higher prices, there will be a reduction of color deviation.

When there is a large number of audiences or use high brightness projector, should choose wide viewing angle, low gain screen, good shading and light-absorbing place, matte white and glass beaded are good choices; selection the proper gain of screen, helps to increase the screen contrast, increase the gray image, color bright, and the observability of the image.

Select the screen according to the application

Before selecting the projection screen, you need to clear what’s the application of the projection If only watch in a fixed position, then wall mounted, ceiling mounted or tripod type is ok; if the projector screen need to be moved to different location frequently, then the best option is portable and easy to place, tripod or wall mount projector screen is good, so that the screen can be taken away at any time after use.

As to use manual or electric screen, if the budget is more abundant, it is better to choose electric. Because the electric screen uses the motor to control the screen, the length of the screen can be automatically arbitrary positioning, while the screen can also be used as part of the central control system for remote control operation. Manual screen can only use artificial way to pull back, but the price is cheap, the operation is simple, For less demanding users, it is more economical and practical. Now some manual screen adds a self locking device, the user can locate the position of the screen, it is more flexible and convenient to use. If using the hard screen (the screen effect of the hard screen is better than the soft screen), the installation of vertical tilt angle should be less than 15 degrees.

Select the screen size

The choice of the projection screen size is mainly based on the area of the use space, to get a good visual experience to each audience to determine. Usually people can referring to the three points before purchasing: first, the screen height is approximately equal to the 1/6 distance from the screen that from the screen to the last row audience; second, the distance of screen to the first row audience should be longer than 2 times of the screen height; third, the bottom of the screen should be at least 122 cm from the ground.

Currently on the market, there are different size of the projector screens, the main popular sizes are 72, 100, 120, 150 inches and so on. 72 inch screen is the mainstream products of the market, and the price is also the most economical, General space area within 100 square meters can use this screen; if the area is larger than this, and between 100-200 square meters, can choose 100-150 inch projector screen; 300 square meters above large conference room or auditorium,   should consider larger size of projector screen according to the number of audience, the seat and viewing area , of course, the larger the screen, the higher the price.

size of the screen is defined by the length of the diagonal, the aspect ratio of the screen image is 4:3, a 72 inch screen, according to the Pythagorean theorem, the screen is 1.5 meters wide, 1.1 meters high.

Proportion collocation of projection screen

Due to the diversity of the source of the projection signal, the aspect ratio of the current selection of projector screen has also become a very important parameter. If the signal source and the screen display is not consistent, the screen will appear on the bottom or left and right. Currently projector screen are mainly 16:9, 4:3, 1:1 .

Early projector screen are only 1:1 and 4:3, until the high-definition video and home theater projector users becomes more and more, the 16:9 screen appeared. 1:1 screens are only suitable to play the slide, and now the application has been less. 4:3 screens are the most widely used, especially in business, education and other industries, and almost all of the projectors are also supported by this ratio.

16:9 is mainly used in the field of home entertainment projection and part of the project projection, the current mainstream home projector is mostly 16:9 display output format. If the user mainly watch videos and HD video, it is recommended to use the 16:9 projector screen. But it is worth mentioning is that some 4:3 projector screen can obtain 16:9 effect through adjust the drop amplitude or adjust the projector to tilt angle, while the 16:9 projector screen display 4:3 image, it will appear gray belt around the screen inevitably